I got 33,400. This test isn't very accurate though. Knowing a word and being able to perceive it's meaning by understanding context are two very different things. There were plenty of words in the list that I didn't know but had they been placed in a book I could quite easily infer their basic meaning and apply them to the story.
I agree. I have no problem reading pretty much any text because not knowing a word in one sentence isn't a big deal, the context explains it.